Journal-lubricator.



PATENTED OCT. 4, 1904.

G. T. BRENNAN. JOURNAL LUBRIGATOR.

APPLIOATION FILED MAY 28, 1904.

N0 MODEL.

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UNITED STATES Patented October 4, 1904. v

PATENT OEEIcE.

GEORGE T. BRENNAN, OF CORAOPOLIS, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TOCHARLES H. HATTON, OF EMLINGTON, PENNSYL- VANIA.

JOURNAL-LUBRICATOR.

SPECIFICATION forming part of Letters Patent N 0. 771,411, dated October4, 1904.

Application filed May 23, 1904. Serial No. 209,162. (No model.)

To all whom, it may concern.-

Be it known that I, GEORGE T. BRENNAN, a citizen of the United States,residing at Coraopolis, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements in Journal-Lubricators; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to the figures ofref erence marked thereon, which form a part of this specification.

This invention relates to improvements in lubricators for the journalsof car-wheel axles.

The object of the invention is to provide lubricating means whichdispenses with the use of waste which is commonly employed in thejournal-boxes and a great deal of which is consumed.

Afurther object of the invention is to economize in the use of the oilin lubricating the journals.

Preceding a detail description of the invention reference is made to theaccompanying drawings, in which Figure 1 is a sectional elevation of ajournal-box and the lubricating devices involved in the presentinvention. The car-wheel in this view is also shown in section andpartly broken away. Fig. 2 is an enlarged sectional view of thelubricant-tank and devices removed from the journal-box and partlybroken away. Fig. 3 is a top plan view of the lubricant-tank. Fig. 4 isa cross-sectional elevation on the line 00 w of Fig. 3. Fig. 5 is an endview of the axle-journal and the grooved member engaged thereby.

In adetail description of the invention similar reference charactersindicate corresponding parts.

The journal-box 1 may be of any of the common forms daily in use, as thepresent invention does not enter into the construction thereof. Locatedin a fixed position within the journal-box is a lubricant-tank 2, havingits upper surface concaved from end to end and inclosed by a wall 3.This tank is supplied with a lubricant through an opening in one sidethereof,which is closed by a plug 4. In the central portion of theconcaved wall 3 there is an opening 5, which is closed by a wire screenor grading 6, said screen or grading being removably secured to the wall3 in any suitable manner. In the present instance screws 7 are shown.The object and purpose of this network or mesh is to strain the oil backinto the tank or receptacle. Placed within the lower central portion ofthe tank is a pump-cylinder 8, which is supportable therein in anysuitable manner. The lower surface of said cylinder is provided with twosuction-valves 9 9, and the upper surface has two discharge-valves 10,thus making the pump double-acting. Movable within the pump-cylinder isa piston 11, which in its op eration will pump the lubricant into thespace above the concaved wall 3. The piston-rod 12 is turned upwardly atits outer end and is connected with a sliding rod 13, which is mountedin a boss-bearing 14, projecting inwardly from the front wall 15 of thelubricant-tank. The inner end of said rod 13 is connected to asegment-piece 16, which has a groove 17 in its upper surface to receivethe lower portion of the flange 18 of the axlejournal19. The flange 18of the journal turns freely within the groove in said member 16, and thelongitudinal movements orvibrations of the aXle'are sufficient to impartto the groove member 16 the necessary movement to operate thepump-piston. This lubricant is operative to oil the journal when a caris in motion, and when stops are made the lubricating of the journalsceases. The journal lies immediately above the discharge-valves 10, andthe vibration or movement of the car imparts to the journal sufficientlongitudinal movement of said journal to impart the necessary movementto the piston 11 to discharge the lubricant.

- Having described my invention, 1 claim In a journal-lubricator, alubricant-tank placed within the journal-box, said tank having its upperface concaved and provided with a screen, said concaved portion beingadapted to receive a journal, a pump located within said tank and havingtwo discharge-valves projected through the coneaved portion of saidtank, a grooved member engaging the lower edge of the outer flanged endof the journal, a connection between said grooved mem her and thepiston-rod of the pump whereby movement is imparted from the endwisethrust of the journal to said piston-rod solely 10 from the outer end ofthe journal to operate the valves, substantially as set forth.

In testimony whereof I aflix my signature in presence of two Witnesses.

GEORGE T. BRENNAN. \Vitnesses:

R. J. MOCARTY, J. W. McKEowN.

